Olia Midnight Permanent Hair Color 2.0 Black Diamond. Nourish your hair as you colour it with the Garnier Olia Permanent Hair Dye. Say goodbye to dull, lifeless hair as the replenishing formula glides effortlessly across your tresses, coating each strand in a powerful veil of hydration. The hair dye is 60% oil-powered, allowing it to lock in moisture for long-lasting, enviable glossiness and a full-bodied bounce, with the appearance of dryness and split ends visibly reduced. The non-drip formula ensures a no mess and no hassle experience, while sweetly-scented Flower Oils offer an alluring and invigorating scent. Pesky grey hairs are expertly concealed as the bold and brilliant colour offers a vibrant, youthful glow, allowing you to feel confident and empowered. The permanent hair dye works to be kind and gentle to your hair, meaning you can be safe in the knowledge that your tresses will not end up coarse or colour-damaged. Treat yourself to gorgeously conditioned, fabulously flowing locks with a luminous sheen. If you are decided between two shades, always choose the lightest.